Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

81662021 (number)

81662021 is an odd 8-digits composite number following 81662020 and preceding 81662022. In scientific notation, it is written as 8.1662021 × 10^7. The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors. There are 69878160 positive integers (up to 81662021) that are relatively prime to 81662021.

Interesting facts

81662021 has 8 divisors, whose sum is 93485184
The reverse of 81662021 is 12026618
Previous prime number is 19031

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

Name	eighty-one million six hundred sixty-two thousand twenty-one

Notation

Scientific notation	8.1662021 × 10^7
Engineering notation	8.1662021 × 10^6

Prime Factorization of 81662021

Prime Factorization 7 × 19031 × 613

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81662021	Product of the distinct prime numbers

The prime factorization of 81662021 is 7 × 19031 × 613. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 2, 52, 58, 603, 71, 9326, 2229, 46012, 35627, 697342, 882103, 1455729, 9610900, 25411697, 10322135, 623252779, 407099976, 6833608329, 7719934704

Basic calculations (n = 81662021)

Multiplication

n×y

n×2	163324042
n×3	244986063
n×4	326648084
n×5	408310105

Division

n÷y

n÷2	40831010.5
n÷3	27220673.666667
n÷3	20415505.25
n÷5	16332404.2

Exponentiation

n^y

n²	6668685673804441
n³	5.4457834953662E+23
n⁴	4.4471368616005E+31
n⁵	3.6316218378189E+39

Nth Root

^y√n

²√n	9036.7041005004
³√n	433.85043902606
⁴√n	95.061580570178
⁵√n	38.229975945439

Divisors of 81662021

1, 7, 613, 4291, 19031, 133217, 11666003, 81662021

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81662020	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	1	Returns the nth root of the product of n divisors
H	Harmonic Mean	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81662021 can be divided by 8 positive divisors. The sum of these divisors (counting 81662021) is 1, the average is 0.125.

Base conversion 81662021

Base	System	Value
2	Binary	100110111100001000001000101
3	Ternary	12200122212020022
4	Quaternary	10313201001011
5	Quinary	131401141041
6	Senary	12034144525
8	Octal	467410105
10	Decimal	81662021
12	Duodecimal	23422145
16	Hexadecimal	4de1045
20	Vigesimal	15a7f11
36	Base36	1cmath

Cryptographic Hash Functions

md5	369ed59a7891d6965cd4aab0d68a76f0
sha1	fd2c4d7946cad9552b1683c47ccd065c2f18adc7
sha256	dd6c0a0b1092b68966ffbd8df3821632dfd825f871d09f896f579158a99d0d1a
sha512	736b9f42441b4168acd6d3875a4dfff2345fef7f2c34da7217459d42d7d300a642ff14e1981bdebaef6b3308f68a482c76d669f1f72ffd5814928e4755041ca5
ripemd-160	e616e16b2968a47acc57cf80e505320eb9d18f26

81662021 as geometric shapes

Circle

Radius = n

Diameter	163324042
Circumference	513097610.50179
Area	2.0950293921924E+16

Sphere

Radius = n

Volume	2.2811244562777E+24
Surface area	8.3801175687694E+16
Circumference	513097610.50179

Square

Length = n

Perimeter	326648084
Area	6668685673804441
Diagonal	115487537.629

Cube

Length = n

Surface area	40012114042826646
Volume	5.4457834953662E+23
Space diagonal	141442769.42076

Equilateral Triangle

Length = n

Perimeter	244986063
Area	2.887625601684E+15
Altitude	70721384.710378

Triangular Pyramid

Length = n

Surface area	2.887625601684E+15
Volume	6.417917397412E+22
Height	38495845.876332